But Larson is now calling out the participants in the Solidarity Singalong for failing to obtain permits for their daily gatherings in the Capitol rotunda protesting some of the very same Walker policies.

In an interview with the "Devil's Advocates" on WXXM-FM (92.1) in Madison last week, Larson was asked if he thought the singers should abide by the requirement that they get a permit from the Capitol police for groups of more than 20 people. Many have been ticketed for not following the rule.

“Do you thing they need to have that permit, Chris?" asked Mike Crute, a co-host of the show. "I’m sorry to interrupt. Do you think these singers have the right to be there to sing and protest each day without a permit?”

Larson, a Milwaukee Democrat, responded: “I do think they should have a permit. . . . I think the singers are in the wrong and should get a permit if they are going to protest on a continuous basis and they know they are going to be there."

He went on to say that he agreed with the points being made by the singers. But he said it was a simple step to abide by the rules by registering for a permit.

Larson also leveled criticism at Walker officials, saying they have gone overboard in their enforcement of the permitting rules and use of of "paramilitary equipment" in dealing with the singers. He also said the Capitol police chief should not have received a questionable raise earlier this year.

"So I think both sides could take a step towards the middle," Larson said.